Hensony Clutched March 9, 2012 Share March 9, 2012 Went to the IT Show yesterday, intending to buy a 32gb micro-SD card for my Blackvue. Was told it is advisable to get a Class 6 card. But the price diff between Class 4 and Class 6 is huge. 32gb class 4 = $39 32gb class 6 = $79 The price diff is ridiculous. Didn't want to be a sucker. I put off the purchase. Did some research. Found out that Class 4 is good enough for HD recording. www.sdcard.org/developers/overview/speed_class/ I did an experiment. Took out the 4gb Class 4 micro-SD card from my Blackberry. Format it to install Blackvue firmware. Did a few minutes of normal recording. The video quality was good. No jerky recording. Everything looked good. ↡ Advertisement Link to post Share on other sites More sharing options...
Hillbilly Neutral Newbie February 25, 2013 Share February 25, 2013 I use class 10 cards in mine and dont have any trouble. Bought Samsung vers on Fleabay for $68 Link to post Share on other sites More sharing options...
Hensony Clutched February 25, 2013 Author Share February 25, 2013 My thread is about 1 year old. I expect SD card prices to drop even further. I'll keep a lookout for SD cards in the upcoming IT Show. Link to post Share on other sites More sharing options...
Kb27 Supersonic February 25, 2013 Share February 25, 2013 Have you considered 16GB instead and go for higher class speed ? I have a Sandisk UHS Class 1, I guess roughly class 10. 16GB is plenty for h.264 recording when the file size is about half of mpeg 2. I didn't see much difference until the dvr occasionally hang. It seemed to be due to the quality of the SD card when I was using another brand. Imo, get the highest speed and stay with Sandisk. Compromise on memory size. Link to post Share on other sites More sharing options...
Dafansu Turbocharged February 25, 2013 Share February 25, 2013 Just go to hardware zone and you can see the latest pricing. Class 4 32GB is about $25 Link to post Share on other sites More sharing options...
Dscheng 3rd Gear February 25, 2013 Share February 25, 2013 Originally pittasoft memory card is class 10. Better play safe to get higher class. Link to post Share on other sites More sharing options...
Ttbest 3rd Gear February 26, 2013 Share February 26, 2013 mine is 16gb class 10 as well, better to be safe then sorry. Link to post Share on other sites More sharing options...
Mcf777 Turbocharged February 26, 2013 Share February 26, 2013 SD card now so cheap. i got several sandisk class 10 ultra 32G for about S$28 per piece at Best bargain computers (SLS) Link to post Share on other sites More sharing options...
Vulcann 6th Gear February 26, 2013 Share February 26, 2013 Anyone can shed some light on the heat resistance of these microSD cards? Bros who took out the cards from the BV just after it shutdown would know how hot it is. Link to post Share on other sites More sharing options...
Happily1986 5th Gear February 26, 2013 Share February 26, 2013 For continuous video recording, sequential read/write is more important than random access timings, hence it is recommended to go for a high Class rating whenever possible. The sandisk ones are quite okay for use in such operating environments. they can withstand up to 85 degrees c. Link to post Share on other sites More sharing options...
Vulcann 6th Gear February 26, 2013 Share February 26, 2013 For continuous video recording, sequential read/write is more important than random access timings, hence it is recommended to go for a high Class rating whenever possible. The sandisk ones are quite okay for use in such operating environments. they can withstand up to 85 degrees c. Thanks bro for the info. Always wonder how devices can work under high temperatures. 85 degrees c is quite close to boiling point liao I must say. Link to post Share on other sites More sharing options...
Happily1986 5th Gear February 26, 2013 Share February 26, 2013 Thanks bro for the info. Always wonder how devices can work under high temperatures. 85 degrees c is quite close to boiling point liao I must say. But that one is boiling point of water mah. Inside is still mainly plastics (for the housing), silicon and metals used for the interconnects mah. Link to post Share on other sites More sharing options...
Vulcann 6th Gear February 26, 2013 Share February 26, 2013 But that one is boiling point of water mah. Inside is still mainly plastics (for the housing), silicon and metals used for the interconnects mah. Haha that's why my science always get Link to post Share on other sites More sharing options...
Hensony Clutched February 26, 2013 Author Share February 26, 2013 SD card now so cheap. i got several sandisk class 10 ultra 32G for about S$28 per piece at Best bargain computers (SLS) Wow... prices have indeed fallen! Thanks for the info. Link to post Share on other sites More sharing options...
Mllcg 3rd Gear February 26, 2013 Share February 26, 2013 But that one is boiling point of water mah. Inside is still mainly plastics (for the housing), silicon and metals used for the interconnects mah. what is the melting point for silicon ar? Link to post Share on other sites More sharing options...
Happily1986 5th Gear February 26, 2013 Share February 26, 2013 what is the melting point for silicon ar? Monocrystalline Si's is about 1,400 degrees C Link to post Share on other sites More sharing options...
Wallaw819 4th Gear February 26, 2013 Share February 26, 2013 Mainly it is the solder that is the weak link. These can range from 90 to 400 deg C. So at elevated temperature sometime the solder soften and this is when you will have problem due to vibration etc. Link to post Share on other sites More sharing options...
Nicholas 5th Gear February 26, 2013 Share February 26, 2013 Yup I read that some people fixed their desktop's graphics card by baking it for the solder "stick" back. Anyway when I use class 4 sdcard for my china carcam, video works fine but the audio/video out of sync. ↡ Advertisement Link to post Share on other sites More sharing options...
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